95364: Can a woman shave her head so that it will grow strong again after she had been ill?

my wife underwent breast cancer surgery and after that she is treated with chemotheraphy and after 3 dose she loose all her hair and according to the doctors the hair will come back after she completed her 6 doses of chemotheraphy.
My question is that since all the hair gone and after she completed her complete 6 doses, can we shave her head so that the hair will come more stronger and thicker.

Praise be to Allaah.

Firstly:

We ask Allaah to heal your
wife and make her well, and to bless you both with patience and help you to
seek reward.

Secondly:

It is not permissible for a
woman to shave her head unless she has an excuse.

It says in Fataawa
al-Lajnah al-Daa’imah (5/179): It is not permissible for a woman to
shave her head except in cases of necessity, because of the report narrated
by al-Tirmidhi and al-Nasaa’i from ‘Ali (may Allaah be pleased with him),
that the Prophet (peace and blessings of Allaah be upon him) forbade
women to shave their heads. And al-Khallaal narrated with his isnaad from
Qataadah that ‘Ikrimah said: The Prophet (peace and blessings of Allaah
be upon him) forbade women to shave their heads. And al-Hasan said: It is
mutilation. Al-Athram said: I heard Abu ‘Abd-Allaah (i.e., Imam Ahmad) being
asked about a woman who is unable to look after her hair and can she cut
short? He said: Why would she cut it short? It was said to him: She is not
able to take care of it, and it gets infested with lice and things. He said:
If it is a matter of necessity, I hope that there is nothing wrong with it.
End quote.

What you have mentioned in
your question is regarded as an excuse, so there is nothing wrong with her
shaving her head so that the hair will grow back stronger and thicker,
because this comes under the heading of putting things back as they were,
and dealing with a fault that has occurred with the hair due to sickness.